AK in LP - K high flop

[westside8]

How do you proceed in this hand?

$5/$10 party full table

Villain #1 raises in MP (loose aggressive preflop - big raising range, but seems to settle down post-flop)
Villain #2 calls (from the time I've sat with him, haven't noticed him going out of line, mostly showing down solid hands)
Hero in LP 3-bets with AK of spades
Villain #1 and #2 calls

Flop K 9 3 (2 spades)
Check to me and I bet with TPTK and nut flush draw
Villain #1 calls, villain #2 CR

Should hero 3 bet to get rid of villain #1 or should hero smooth call to bring villain #1 along due to the big draw hero has (and also if a spade hit, then I get squeeze an extra BB). Also, if I 3-bet, I will either get a free-card, or my guess is villain #2 is probably on a set, so he will cap which means it'll cost me another BB to see if a spade hits on the turn.